Improvement in transverse rocking grates



2 Sheets-Sheet 1 H. SWINDELL.

TRANSVERSE BooK-ING GRATES. No. 181,221.

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MHESEEE. y I Q/W Moge/ Patented.' Aug.15,1876.'

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H. SWINDELL. TRANSVERSE ROGKING GRATES.

Patented'Aug.15,1876.

No.181,ZZ1.

N. PETERS. FHOTO-UTHOGRAPHER, WASHNGTON. Dv C4 'ilnrrnn STATES PATENT orare-ii..

HENRY SWINDELL, vOF ALLEGHENY, PENNSYLVANIA.l

IMPRovEMENT IN TRAN'svE'RsE RocKlNG c-iRA'rEs.l

Specification forming part of Letters Patent N o. 181,221, dated August 15, 1876; application tiled v May 26,1576.

To all whom it may concern:

Be it known that I, HENRY SWINDELL, of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Grates; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawing, forming part-of this specification, iu which- Figure 1 is a rear perspective View of a grate embodying my improvements. Fig. 2 is a view of the under side or bottom of the grate Fig. 3 is a front View, and Fig. 4 is a longitudinal vertical section. Y

Like letters refer to like parts wherever they occur.

My invention relates to the construction of grates for furnaces, gas-generators, 8vo., and

is especially adapted to the coking and grad-v ual combustion of fuel.

In conjunction with a dumpinggrate, I employ a series of grates arranged to form an inclined or feeding surface, and mechanism for agitating the supplemental or inclined grates, so as to loosen up and feed the fuel f0rwardupon the main or dumping grate.

I will now proceed to describe my invention by referring to the drawing, so that others skilled in the art to which it appertains may make and use the same.

A indicates the frame or casing in which the grates are set, and B the front plate. C is the main or dumping grate, hinged as at b, or pivoted at the center, if preferred, and sustained in a horizontal position by a series of latches, b. Connected to the forward part of grate C, preferably to a lug or arm on the under side of the grate, is a chain, c, rod, or equivalent means for lifting and agitating the grate. In this connection a chain, as

shown, is most desirable, as it may be wound and unwound from a winch, c, in raising, low ering, or agitating the grate. D D are a series of supplemental or feeding grates, pivoted in the frame A, and supported by a series of lugs, a, a.. 'lhese grates D' are arranged to form an inclined feeding-surface, the inclination of the grates being determined by circumstances, such as the quality of the feed employed, or the depth of fuel to be maintained on the main grate C. From the under surfaces of E E, pivoted on the frame or front plate A B,

one or more levers for each grate, forming the inclined feeding-surface, so that th'e fuel upon any part of the incline may be loosened up. In the front and fed forward at pleasure. plate B, on a level with the incline formed by the grates D D, are a series of feed-openings, f f, closed by hoppers F F, hinged as at f1, and locked by a catch, f2, opposite the hinge. The lower plates of the hoppers F are extended down, as shown at t'. or otherwise formed to shut within the feed-opening, and direct the contents of the hopper upon the inclined grates. The hoppers are also supplied with the usual valves 7c lc, and may be provided with openings L l, closed by slides, to serve as spy-holes or draft openings, as desired.

The operation of these devices is as follows: The fuel, being introduced through the feedopenings in the usual manner, or by means of the hoppers, passes down the incline, and banks upon the main or dumping grate until a-suflicient bed of coals is obtained. rlhis bed of fuel can be changed from time to time, as it becomes expended by agitating or dumping the main grate C, and the subsequent charges of fuel introduced may be broken up transvcrsely, and gradually worked down in successive portions tothe main grate, by operating the several grates of the incline by means of their respective levers. As the fuel passes down the incline, it receives an increased supply of air, the fuel at the top of the incline receiving the minimum, so that the fuel gradually cokes before it reaches the main grate, the gases being carried along through vthe incandescent fuel on grate C. In thevcoking process, should the mass become agglomerated, it can be readily broken up or forced down the incline by tilting the grates D D. Should the upper part of the inclined grate-surface become clogged, the hoppers may be swung back and an instrument introduced to breakV 'lhe hoppers may also be swung,

up the mass. back when a draft through or over the fuel on the incline is desired.

By my improved devices, fuel of various v face, substantially as specified.

2. The combination of the series of trans-- verse gratos D D, arranged to form pivoted sections of an inclinedfeed-surface, and the horizontal pivote-(1 dumping-grate C, substantinlly as specified.

In testimony `whereof I, the said HENRY SWINDELL, have hereunto set my hand.

HENRY SWINDELL;

Witnesses: i

JAMES I. KAY, WILLIAM SWINDELL., 

